Connection.



Z. P. GANDEE.

Patented Sept. 9, 1913.

BTB-SHEET 1.

8 Tuve u,

Z. P. GANDEE.

CONNECTION.

APPLIOATION FILED nu 1s, 1912.

`1,072,425. Patented sept.9,1913.

2 SHEETS-SHEET 2. x- -c Eil Wma 7x (ift/m By ZENAS P. CANDEE, 0F 'WATERBURY, CONNECTICUT, ASSIGNOR -TO-WATERBURY FARREL FOUNDRY AND MACHINE COMPANY, 0F WATERBURY),

A CORPORATION 0F CONNECTICUT.

CONNECTICUT,

CONNECTION.

Specification of Letters Patent.

Patented Sept. 9, 1913.

Application iled May 18, 1912. 'Serial No. 698,136.

To all 'whom 'it may concern le it known that I, ZnNAs P. CANDEE, a citizen of the United States, residing at li'aterbury, in the count of New Haven and State of Connecticut, ave invented certain new and useful Improvements in Connections, of which the following is a specifi ration, reference being had therein to the accompanying drawings.

My invention relates to a new and improved connection, referring Amore particularly to that type of connection used in a press or similar device for joining the crank shaft with the gate. I

lt is the object of my invention, among other things, to provide means whereby the adjusting screw therein may be held 'against endwise movement while the gate is in operation, thereby preventing wear upon the parts and accumulation of back 'play by the screw within its threaded socket; a further object being to so design such means that it will 4have engagement with the screw at more than one oint about its'periphery.

To these, and other ends,'my invention consists in the connection, having certain `details of `construction and combinations ot parts, as will be hereinafter described and more particularly pointed out in the claims.

Referring to the drawings, in which like4 numerals of reference designate like parts in the several figures; Figure l is aview of my improved connection partly in section; Fig. 2 is a viewlooking toward the right of Fig.V l, some of the parts thereof being in section upon line A--B of Fig. 1; Fig. Sis a View,

of the lock nut; Fig. 4 is an enlarged view of a port-ion of the'adjusting screw with thel clamp and lock nuts; Fig. 5 is a view of a -modiied form of my invention; Fig. 6is

another View of the modified form looking toward the right of Fig. l with some of the parts in section upon line C-D of Fig. 5; and Fig. 7 is a View of the lock plate.

The connection herein shown and described is of the type generally used 'upon a power press, one member being lconnected with the crank shaft, and another member with the gate. The relativepositions of the gate with the crank -shaft being adjustable through a screw that is threaded in Ieach 'of said members, in one with -a right hand thread and in the other with ay left hand thread, so that by rotation of the screw in one direction the members are drawn toward each other, and Vice versa.

In operating the press, substantially 'al1` of the strain is `upon the screw threads, hence it isnecessary that the male and female threads be fitted with great exactness andv nicety. This is not always accomplished, however, in practice, as frequently there is a slight endwise movement of the screw within the iconnection mechanism, which increases materiallyas the press' is used. Even' though the Screw is'properlv fitted originally, in time it works loose and considerable back' play develops., To eliminate this objection'in thepresent type of connection, is largely the object of my invention, and I accomplish it through the medium of a nut or plate threaded on 'the screw that holds said screw so that the thread surfaces takimg'tlie'- thrust or strain are held tightly against each other.'

lathe drawings, in which the connection is illustrated in only oneof themanyforms in which it maybe made, the-numeral l; designates the member that'issecured to the crank, and-2 the member that is connected with ,they gate, lb oth being joined thrtnlgh ascrew 13, threaded into one of the members wlth a right `hand thread and the otherwith a left .hand thread. Uponsaid screw are the lock nuts Il, which are shown herein as being circular in form and rhaving thelips 5 on one face thereof, which' enter radial recesses 6 1n the inner' ends ofthe ymembers l and 2: Threaded ontothe inner end of -eacli of said members is a clamp nut 7, having a lip 8 thereon that engages the shoulder 9 upon the lock nutli. The screw Sfduring its rotation moves through the lockY nuts 4i, that are heldl against rotation by the engagement of the lips 5 with the recesses 6. After the members l and 2 have been moved to their proper relative position, the' clam nuts are successively-rotated and the loer nut is moved toward the member with which it is connected, this movement of the lock nut resulting in the movement of-the screw so thatthe faces of the thread that 4take the strain are held tightly against each other and have no opportunity to move therefrom. InFig. t I have illustrated the relative position of all of the partswhen the lock nuts are secured in position, wherein it will be observed that the 'faces 10 on the thread i in the member 1 and screw?) that take the thrust or strain are in close Contact with each 1o reversed. The same situatiqn'g applies .to the thread.

up this wear andzjeliminate all back lash or other, while the open space or play,P ifany, lies between the faces 11 upon the other side of the thread, where there is practically no strain. As the lock nut t moves the screw 3 into the member 1, the thrust or str-ain upon the thread in the lock nut is upon the lfaces 11 andnotnpon the faces 10, in which case the 'openfspaca if any, is

member 2 exce t Athat[theconditions are reversed, the entire. thrust1 'orfstrain between the members 1 andQZ; lwhenvilin--operatiom being a compression strain, hence'the work would come upon the opposite side of the If by reason of wear,or for.other-rea; sons, the threads become worn, an additional slight rotation oftheA clamp nut 7 will take In Figs. 1 'tod `inclusive, the preferred form of my invention isillustrated, butas the details of its construction may be varied indeinitely, 1 have taken the liberty in Figs. 5, 6 and 7-l of showing one of'vsuch modified forms,wherein'a lock plate 1 2 -is substituted for Vthe-lock nut `4 and clampnut 7, this lock plate being threaded upon" the screw 3 in the same manner as thelock` nut 4, and moved toward the ,memberf'to' which it is attached by meansfof:,-thezbol-ts' y 13, the heads of which lie ingrimvers14'to v lso that can' be made within my invention, aside prevent their rotation, andhaving-fnut threaded upon the ends thereofg'rjvv' h least one of said bolts provided wit' nnt16. l u

4The operation of this 'modiedform..of device is exactly the same-as ,that ofthe preferred form, the lock plate, however, being moved through manipulationgofithe nuts 15 and 16 instead of through- .7 the clampl nut 7. .l There are mlnor changes and alterations 1 from those he-reinsuggested, and I `would therefore have it understood 'that 1 lvdo not limit myself to the exact construction l'herein Showngand described, but claim all that falls vfairly within the spirit andsopegnof.

claimas new and desire to my invention.

Having described my invention; anni Secureby; Letters Patent, is z- 1. 1n a devlce of the character-described,

' the combination with two independent mem-- bers; of a threaded'member threadedinto each of and' connecting, said independent members; means connectedwith each of said independent members and having engageallel with its aXsn without'rotatiom a A2. In a'di'if the combirfatin. with tqwo independent inembers; of athreadedl member connecting 'said having engagenietif with -1said threaded member connectedjwith the inner end of lan openspacetlierebetween and held against rotation in relation theretoyand means condependent members forl m'ovnf` the said V locking members" toward, the vsai "independ-` ent members and the threadedlmember with- ;in the said kindept-indent members, parallel with its ax'isbut withoutfrotatiom a suiithe combination with two independent members; of a; `threaded member connecting said independent members gy locking members threaded onto saidlfthreaded member, each locking member havinga lip and recess conv nection with :theinne'rend of each of said lindependent members', and an open space therebetween; and a sleeve member threaded 'onto the inner vend of each of said indelocking members so as t-o move the same parallel to the ,axis o 't'said threaded member but Without rotation, a sutiicient distance to take upl the vplay or lost motiOn within the i f 1n testimon whereof 1 aftixmy signature in presence o two witnesses.

t i ZENAS-P. CANDEE.

Witnesses:

Roman S. WOTKYNS,

y GEO. A. GAUTHIER.

' ment with said threaded member upon oppo nach of said independent members andsaid. locking' members for moving .said lockingA members 'toward said independent members and said' threaded member within its thread-' ed sockets insaidlindeendent members par? :each of said independent members with an 'cient distanceio A'take uptli'e play or lost] E motion with'in "thethreads, v

3. In adeycepf the character described,v

pendent members vand engaging one of said sufficient distance`to 'take Yup the play or lost motion niifhllrth threads. p v

" `f the 'character 4described,

nected with saidlocking'members and .in- 

